Merer



(No Model.)

C. KAMMERER.

STEAM TRAP.

No. 398,622. Patented Peb. 26, 1889.

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iviTrn STATES PATENT OFFICE.

CHRISTOPHER KAMMERER, OF BOSTON, MASSACHUSETTS, ASSIGNOR TO JOSEPH F. STILLMAN, OF SAME PLACE.

STEAM-TRAP.

SPECIFICATION forming part of Letters Patent No. 398,622, dated February 26, 1889. Application filed November 23,1888. Serial No. 291,708. (No model.)

MERER, ot' Boston, county of Sultolk, State of l ll/lassachusetts, have invented an Improvement in Steani-'l`raps, ot which the following description, in connection with the accompanying drawings, is a specification, like letters on the drawings representing like parts.

This invention has for its object to provide a novel steam-trap constructed as will be de scribed, whereby steam is prevented from escaping or lea-king through the outlet-valve for the water of condensation accumulating in the trap, the said valve being governed automatically by the amount of water of condensat-ion in the said trap.

Another feature of my invention consists in providing an outlet for air which may accumulate in said trap.

Myinvention in a steam-tra p consists, essentially, in the combin ation, with a chamber or vessel provided with a steaminlet and wateroutlet and a valve to control said water-outlet, of an auxiliary chamber connected with the chamber or vessel, a float in said auxiliary chamber operatively connected to the said valve, and a counter-balance for said tloat, substantially as will be described.

Other features of my invention will be pointed out in the claims at the end of this specification.

Figure l shows, in section and elevation, a steam-trap embodying my invention; Figs. 2 and 3, details to be referred to.

The vessel or chamber A, provided with the water-outlet pipe a, having, preferably, a balanced valve, (not showin) maybe of any usual or well-hnown construction. The vessel or chamber A is connected, as herein shown, to the pipe B, which may be the bottom or lowest one of a series of steanrcirculating coils or pipes, or it may be the condensation-pipe of a steanrchamber, (not shown,) the water of condensation from the pipe B flowing into the vessel or chamber' A. The outlet-valve for the vessel A has its valve-stem a connected to one arm of lever a?, pivoted, as at a3, to an auxiliary chamber or vessel, a4, herein shown as supported upon a bracket, d5, attached to the chamber or vessel A.

The auxiliary vessel d" provided with a cover secured steam -tight thereon in any usual or welldnown manner, t-he said cover having connected to it one end of a pipe, l), havin its other end extended down into the vessel A t" or substantially a considerable distance, for a purpose to be hereina tter described. i

The auxiliary' chamber u contains within it a float, b', preferably made as an open pot or vessel iilled with liquid, the said tloat being connected in suitable manner to the lever a?, having its other end provided with a suitable counterbalancing-weight, b2. The float b is made of somewhat smaller area in crosssec tion than the auxiliary chamber to leave a water-space about the said float, the said space being connected to the vessel A near its bottom by a pipe, b3.

The cover ot the auxiliary chamber is provided with a steam-outlet pipe, b4, into which is tted the stein b5 of a valve, bb', carried by the float, it being connected, as shown, to a cross-bar, bl', of the said iloat.

The valve-ste1n a of the water-outlet valve is extended through a guide herein shown as an arm or bracket, bs, and the upper end of the said valve-stem is connected to the lever a2, the said valve-stein being preferably provided with a flexible joint of any usual construction, as at bm, so that when the lever is turned on its pivot the said valveste1n may move in a vertical or straight path In the operation of my improved steamtrap the water of condensation flows from the pipe B into the vesselA and accumulates therein, the water-outlet valve being closed and the float being in the position shown. lith the parts in the position referred to, any air which may be in the coils or steam-chamber, and which is forced down when the steam is turned on in the coils, will readily tind its way through the pipe b and out at b4. The watenoutlet valve remains closed as long as the water of condensation in the vessel A does not cover or seal the mout-h of the pipe b. If the water of condensation should accumulate in the trap A so as to cover or seal the mouth of the pipe b, the water will be forced by the steampressure into the auxiliary IOO chamber through the pipes b Ui and counterbalanee the weight! of the float, thus allowing the weight 'b2 on the lever to turn the Same on its pivot and raise the water-outlet valve from its seat, thereby permitting the escape of Water from the trap or vessel A. A." Soon as the water in the trap or Vessel A falls below or unseals the mouth of the pipe l) the Steam rushes into the vessel A and forces the water in the auxiliary chamber back into the trap A, and the float descends and closes the water-outlet Valve, the air in the trap A, which Settles and forms a layer between the steam and water, passingl into the auxiliary chainl ber through the pipe b and escaping therefrom through the outlet-pipe b", the latter@ being closed by lhe valve 'U3 when the [loatiS It will thus be Seen that a considerl raised.

chamber or vessel, A, provided with a steamnlet and Water-outlet and a valve to control Said water-outlet, of an auxiliary chamber connected with the chamber or vessel A, a float in said auxiliary chamber operatively connected to the Said Valve, and a counterbalance Vfor said float, substantially as (lescribed.

2. In a steam-trap, the combination,with a chamber or vessel, A, provided with a steaminlet and water-outlet and a valve to control Said Water-outlet, of an auxiliary chamber connected with the chamber or vessel A, a iioat in said auxiliary chamber operatively cnnccted'to the said Valve, an air-outlet in the auxiliary chamber, a valve for Said outlet carried by the lioat, and a couutter-balance for Said float, Substantially as described.

In. testimony whereof I have si gned my naine to this specification in the presence of two Subscribing witnesses. Y

CHRISTOPHER KAMMERER. lVitnesses:

JAS, H. CHURCHILL, A. S. WIEGAND. 

